db.getCollection("KnowledgePoints").insert( {
    _id: ObjectId("610ba29a1c78644a18938a60"),
    KnowledgePoint: "HTML"
} );
db.getCollection("KnowledgePoints").insert( {
    _id: ObjectId("610ba29d1c78644a18938a63"),
    KnowledgePoint: "CSS"
} );
db.getCollection("KnowledgePoints").insert( {
    _id: ObjectId("610ba2a21c78644a18938a66"),
    KnowledgePoint: "JS"
} );
db.getCollection("KnowledgePoints").insert( {
    _id: ObjectId("610ba2a61c78644a18938a69"),
    KnowledgePoint: "JAVA"
} );
db.getCollection("KnowledgePoints").insert( {
    _id: ObjectId("610ba2ad1c78644a18938a6c"),
    KnowledgePoint: "AJAX"
} );
